Entanglement in (4 ＋ 1)-D-Dirac-type lattice model time-reversal-invariant

L.S. Lima

Physica A: Statistical Mechanics and its Applications, 2021, vol. 578, issue C

Abstract: Entanglement is studied in the neighborhood of topological phase transition in some topological insulators models as one-dimensional Rice–Mele model, two-dimensional Qi–Wu–Zhang model or Chern insulator and (4 ＋ 1)-D higher dimensional Chern insulators. The systems describe electrons hopping in one, two or higher-dimensional chains respectively, being for the one-dimensional model, we have considered staggered hopping amplitudes. Our results show strong an effect of the variation of the topological charge Q in the neighborhood of topological phase transition on thermal entanglement for all cases analyzed.

Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:578:y:2021:i:c:s0378437121003848

DOI: 10.1016/j.physa.2021.126111

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